Posts by Michael H.W. Weber
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1) Questions and Answers : Wish list : Client for Linux-on-ARM (Message 4704)
Posted 18 Nov 2015 by Profile Michael H.W. Weber
Yes, thank you. The problem is: I am unsure whether the ARM v6 and ARM v7 clients will work on Cortex-A8/A9/A15 processors. For these, again, I can make SSH access available, if desired. Alternatively, the source code plus brief instructions of how they were compiled might be sent to us...

Michael.
2) Questions and Answers : Wish list : Client for Linux-on-ARM (Message 4697)
Posted 11 Nov 2015 by Profile Michael H.W. Weber
Could you please compile your client under Linux-on-ARM such that we can use it with e.g. the ODROID computing platforms, the NVIDIA Jetson Tegra K1 and many more?
If necessary, I can provide remote-access to such an environment via SSH (ODROID-U2/U2/XU4 and NVIDIA Jetson TK1).

Michael.
3) Questions and Answers : Unix/Linux : Linux on ARM (Message 1444)
Posted 2 Aug 2013 by Profile Michael H.W. Weber
Just for the numbers:
According to my measurements, the ODROID-U2 consumes around 5.5 W under full CPU load, i.e. all 4 cores are occupied with an Asteroid@home WU under Ubuntu Linux. Each of these WUs finishes in roughly 10 hrs, i.e. every 10 hrs 4 WUs are being uploaded (CPU clock fequency of this Cortex-A9 system is 1.7 GHz).

My (admittedly older) AMD system harboring an Athlon XP4800+ Dual core CPU (with a 2.5 GHz clock frequency) finishes 2 WUs roughly every 5 hrs which eqals to 4 uploads every 10 hrs like the ARM machine. BUT: The AMD system consumes far more than 20-fold the electricity of the ARM system to accompolish this.

And that is actually the bottom line:
How much computational throughput is achieved per Watt of electricity?
With the (outdated) Cortex-A9 system, ARM is already more than 20-fold more productive upon consumption of approx. equal amounts of electricity.

One more thing: Compare the clock frequencies of both CPUs...
So, I believe there is good reason to keep an eye on ARM even in the field of scientific computing / distribued computing.
Certainly, an A15 machine will be in my collection... :)

Michael.
4) Questions and Answers : Unix/Linux : Linux on ARM (Message 1425)
Posted 31 Jul 2013 by Profile Michael H.W. Weber
Hi Daniel,
thanks for the information.
Michael.
5) Questions and Answers : Unix/Linux : Linux on ARM (Message 1419)
Posted 30 Jul 2013 by Profile Michael H.W. Weber
I just verified that this project does not support Linux on ARM. I have an ODROID-U2 (ARM Cortex-A9 Quadcore, 1.7 GHz) system which performs well with Asteroids@home. Since an Android client for ARM is available for POGS, it should be possible to port it to Linux on ARM. I also know that other people are out there supporting DC projects with Linux on ARM (and even the ODROID-U2 and -X2 platforms) such that WU validation would not be an issue (if bit-wise comparison of multiple results for the same WU is used for POGS validation process at all).

I would also offer to try to compile the source code of this project for you on my ODROID-U2: you would need to supply the source code and the compiling settings you use for the x86 Linux client.

Alternatively, you may simply cross-compile it yourself using the scripts which GENTOO Linux supplies.

Best,
Michael.




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